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/*
* linux/drivers/serial/cpm_uart.h
*
* Driver for CPM (SCC/SMC) serial ports
*
* Copyright (C) 2004 Freescale Semiconductor, Inc.
*
*/
#ifndef CPM_UART_H
#define CPM_UART_H
#include <linux/config.h>
#include <linux/platform_device.h>
#include <linux/fs_uart_pd.h>
#if defined(CONFIG_CPM2)
#include "cpm_uart_cpm2.h"
#elif defined(CONFIG_8xx)
#include "cpm_uart_cpm1.h"
#endif
#define SERIAL_CPM_MAJOR 204
#define SERIAL_CPM_MINOR 46
#define IS_SMC(pinfo) (pinfo->flags & FLAG_SMC)
#define IS_DISCARDING(pinfo) (pinfo->flags & FLAG_DISCARDING)
#define FLAG_DISCARDING 0x00000004 /* when set, don't discard */
#define FLAG_SMC 0x00000002
#define FLAG_CONSOLE 0x00000001
#define UART_SMC1 fsid_smc1_uart
#define UART_SMC2 fsid_smc2_uart
#define UART_SCC1 fsid_scc1_uart
#define UART_SCC2 fsid_scc2_uart
#define UART_SCC3 fsid_scc3_uart
#define UART_SCC4 fsid_scc4_uart
#define UART_NR fs_uart_nr
#define RX_NUM_FIFO 4
#define RX_BUF_SIZE 32
#define TX_NUM_FIFO 4
#define TX_BUF_SIZE 32
#define SCC_WAIT_CLOSING 100
struct uart_cpm_port {
struct uart_port port;
u16 rx_nrfifos;
u16 rx_fifosize;
u16 tx_nrfifos;
u16 tx_fifosize;
smc_t *smcp;
smc_uart_t *smcup;
scc_t *sccp;
scc_uart_t *sccup;
volatile cbd_t *rx_bd_base;
volatile cbd_t *rx_cur;
volatile cbd_t *tx_bd_base;
volatile cbd_t *tx_cur;
unsigned char *tx_buf;
unsigned char *rx_buf;
u32 flags;
void (*set_lineif)(struct uart_cpm_port *);
u8 brg;
uint dp_addr;
void *mem_addr;
dma_addr_t dma_addr;
/* helpers */
int baud;
int bits;
/* Keep track of 'odd' SMC2 wirings */
int is_portb;
/* wait on close if needed */
int wait_closing;
};
extern int cpm_uart_port_map[UART_NR];
extern int cpm_uart_nr;
extern struct uart_cpm_port cpm_uart_ports[UART_NR];
/* these are located in their respective files */
void cpm_line_cr_cmd(int line, int cmd);
int cpm_uart_init_portdesc(void);
int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
void cpm_uart_freebuf(struct uart_cpm_port *pinfo);
void smc1_lineif(struct uart_cpm_port *pinfo);
void smc2_lineif(struct uart_cpm_port *pinfo);
void scc1_lineif(struct uart_cpm_port *pinfo);
void scc2_lineif(struct uart_cpm_port *pinfo);
void scc3_lineif(struct uart_cpm_port *pinfo);
void scc4_lineif(struct uart_cpm_port *pinfo);
#endif /* CPM_UART_H */
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